Global Patent Index - EP 3173268 A4

EP 3173268 A4 20180418 - REFRIGERATION CYCLE DEVICE

Title (en)

REFRIGERATION CYCLE DEVICE

Title (de)

KÄLTEKREISLAUFVORRICHTUNG

Title (fr)

DISPOSITIF DE CYCLE FRIGORIFIQUE

Publication

EP 3173268 A4 20180418 (EN)

Application

EP 15825356 A 20150717

Priority

  • JP 2014150103 A 20140723
  • JP 2015133794 A 20150702
  • JP 2015003617 W 20150717

Abstract (en)

[origin: EP3173268A1] A refrigeration cycle device includes a first refrigeration cycle circuit (1), a second refrigeration cycle circuit (2), a hot water circuit (5) that cools a heat source (3), a first water-refrigerant heat exchanger (13) that performs a heat exchange between a refrigerant in the first refrigeration cycle circuit and a coolant in the hot water circuit, and a second water-refrigerant heat exchanger (14) that performs a heat exchange between a refrigerant in the second refrigeration cycle circuit and the coolant in the hot water circuit. The first refrigeration cycle circuit and the second refrigeration cycle circuit are controlled so that one of those refrigeration cycle circuits performs defrosting operation while the other refrigeration cycle circuit performs heating operation. With the above configuration, the first and second refrigeration cycle circuits do not perform the defrosting operation at the same time. When it is determined that the first refrigeration cycle circuit performs the defrosting operation and the first refrigeration cycle circuit can absorb the heat from a hot water, the control device (6) allows the hot water of the hot water circuit (5) to flow in the first water-refrigerant heat exchanger (13) and to exchange heat with the refrigerant. A heat absorbed by one refrigeration cycle circuit can be leveraged for the defrosting operation of the other refrigeration cycle circuit through the hot water circuit, and the defrosting efficiency can be improved, and the defrosting time can be reduced.

IPC 8 full level

B60H 1/22 (2006.01); B60H 1/08 (2006.01); F25B 27/02 (2006.01); F25B 47/02 (2006.01)

CPC (source: EP)

B60H 1/00921 (2013.01); B60H 1/3228 (2019.04); B60H 1/323 (2013.01); F25B 27/02 (2013.01); F25B 41/42 (2021.01); F25B 47/022 (2013.01); F25B 49/02 (2013.01); B60H 2001/00961 (2019.04); F25B 2339/047 (2013.01); F25B 2400/0401 (2013.01); F25B 2400/0403 (2013.01); F25B 2400/0409 (2013.01); F25B 2400/0411 (2013.01); F25B 2600/2513 (2013.01); F25B 2600/2519 (2013.01); F25B 2700/21152 (2013.01); F25B 2700/21162 (2013.01); F25B 2700/2117 (2013.01); Y02A 30/274 (2017.12)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3173268 A1 20170531; EP 3173268 A4 20180418; EP 3173268 B1 20200624; CN 106660430 A 20170510; CN 106660430 B 20190510; JP 2016028935 A 20160303; JP 6380265 B2 20180829; WO 2016013194 A1 20160128

DOCDB simple family (application)

EP 15825356 A 20150717; CN 201580039901 A 20150717; JP 2015003617 W 20150717; JP 2015133794 A 20150702